Author:
Date:
Subject:
Mark
2008-07-18 13:54:58
Re: Memresistor & Audio
> Oh, and for "quantization error" the OP was asking about, there's
> two kinds of quantization in digital systems: amplitude and time. The
> memresistor will be like an element in the Winbond chips, or like the
> capacitor in the old BBD chips - you still have the time-wise
> quantization.
>
>
which is called SAMPLING
Mark
Author:
Date:
Subject:
David Grant
2008-07-18 17:07:21
Re: Memresistor & Audio
> Oh, and for "quantization error" the OP was asking about, there's
> two kinds of quantization in digital systems: amplitude and time. The
> memresistor will be like an element in the Winbond chips, or like the
> capacitor in the old BBD chips - you still have the time-wise
> quantization.
>
Did those rely on battery backup? The memresistor supposedly retains data
without a power source, which is one of its touted advantages.
>And considering the consumer market has basically gone from 16-bit
>PCM (CD) to that format but lossily encoded in mp3's, any "better"
>quality audio device is unlikely to make it to consumer market, so it
>might be marginal to make it for pro and high-end audio markets.
No arguement there.
Author:
Date:
Subject:
David Grant
2008-07-15 09:11:01
Re: Memresistor & Audio
"Arny Krueger" <[email protected]> wrote in message
news:MYidnTdn-7kKVubVnZ2dnUVZ_q7inZ2d@comcast.com...
> "David Grant" <[email protected]> wrote in message
> news:[email protected]
>> HP announced that it's beginning to manufacture the
>> memresistor in 2009. Any speculation that this device
>> will have a practical application in analog audio
>> storage? I haven't read any specs on dynamic range, but
>> assuming it beats CD quality, might we have an analog
>> storage device that's as good as digital but without
>> quantization error?
>
> It appears that this device remembers the direction of current flow. Since
> current can only flow in 2 directions, it would appear to be only capable
> of binary (digital) memory.
Sorry... I was led to believe it remembers the amplitude of the current
flow. I read that you set the resistance of the device using DC voltage and
measure it using AC.
Author:
Date:
Subject:
Tobiah
2008-07-15 12:42:37
Re: Memresistor & Audio
>> It appears that this device remembers the direction of current flow. Since
>> current can only flow in 2 directions, it would appear to be only capable
>> of binary (digital) memory.
>
> Sorry... I was led to believe it remembers the amplitude of the current
> flow. I read that you set the resistance of the device using DC voltage and
> measure it using AC.
The more current you put through in one direction, the greater
the resistance. Put current through the other way, and it starts
to lower in resistance. It is quite suited to analog computing.
** Posted from http://www.teranews.com **
Author:
Date:
Subject:
Eeyore
2008-07-19 08:20:55
Re: Memresistor & Audio
Tobiah wrote:
> >> It appears that this device remembers the direction of current flow. Since
> >> current can only flow in 2 directions, it would appear to be only capable
> >> of binary (digital) memory.
> >
> > Sorry... I was led to believe it remembers the amplitude of the current
> > flow. I read that you set the resistance of the device using DC voltage and
> > measure it using AC.
>
> The more current you put through in one direction, the greater
> the resistance. Put current through the other way, and it starts
> to lower in resistance. It is quite suited to analog computing.
I somewhat doubt it's going to be very linear.
Graham
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